Army aeromedical evacuation procedures in Vietnam: implications for rural America.
D000401:Aircraft; D000552:Ambulances / Q000706:statistics & numerical data; D004632:Emergency Medical Services / Q000706:statistics & numerical data*; D006801:Humans; D008887:Military Medicine; D012424:Rural Population; D014187:Transportation of Patients; D014481:United States; D014744:Vietnam